ospf配置笔记.docx
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ospf配置笔记
NBMA环境
R3配置
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
r3（config）#routerospf1
*Mar100:
19:
59.083:
%OSPF-5-ADJCHG:
Process100,Nbr8.8.8.6onSerial1/1fromLOADINGtoFULL,LoadingDone
r3（config-router）#net
r3（config-router）#network8.8.8.30.0.0.0are
r3（config-router）#network8.8.8.30.0.0.0area0
r3（config-router）#^Z
r3#
*Mar100:
20:
33.067:
%SYS-5-CONFIG_I:
Configuredfromconsolebyconsole
r3#
r3#
r3#
r3#shipospfnei
NeighborIDPriStateDeadTimeAddressInterface
8.8.8.51FULL/DROTHER00:
01:
514.4.4.2Serial1/1
8.8.8.61FULL/DR00:
01:
464.4.4.3Serial1/1
r3#shrun
Buildingconfiguration...
hostnamer3
interfaceLoopback0
ipaddress8.8.8.3255.255.255.255
interfaceSerial1/1
ipaddress4.4.4.1255.255.255.0
encapsulationframe-relay
serialrestart-delay0
routerospf100
log-adjacency-changes
network4.4.4.10.0.0.0area1
neighbor4.4.4.2priority1
neighbor4.4.4.3priority1
!
routerospf1
log-adjacency-changes
network8.8.8.30.0.0.0area0
!
R5配置
Router#shrun
Buildingconfiguration...
hostnameRouter
interfaceLoopback0
ipaddress8.8.8.5255.255.255.255
!
interfaceSerial1/1
ipaddress4.4.4.2255.255.255.0
encapsulationframe-relay
serialrestart-delay0
!
routerospf100
log-adjacency-changes
network4.4.4.20.0.0.0area1
network8.8.8.50.0.0.0area1
!
r6配置
Router#shrun
Buildingconfiguration...
hostnameRouter
interfaceLoopback0
ipaddress8.8.8.6255.255.255.255
interfaceSerial1/1
ipaddress4.4.4.3255.255.255.0
encapsulationframe-relay
serialrestart-delay0
routerospf100
log-adjacency-changes
network4.4.4.30.0.0.0area1
network8.8.8.60.0.0.0area1
配置OSPF网络类型非广播
r3#shipospfnei
NeighborIDPriStateDeadTimeAddressInterface
8.8.8.51FULL/DROTHER00:
01:
524.4.4.2Serial1/1
8.8.8.61FULL/DR00:
01:
444.4.4.3Serial1/1
可能是r3比较早开启，所以作为DR。
R5和r6配上frame-relaymapip4.4.4.3100broadcast和frame-relaymapip4.4.4.3200broadcast后才能ping通
在一个自治area中，没有area0依然能通信。
竞选DR：
让r5和r6的优先级为0，丧失竞选：
r5（config）#ints1/1
r5（config-if）#ipospfp
r5（config-if）#ipospfpriority0
r6（config）#ints1/1
r6（config-if）#ipospfp
r6（config-if）#ipospfpriority0
在三台路由器上运行
clearipospfprocess
r3#shipospfnei
NeighborIDPriStateDeadTimeAddressInterface
8.8.8.502WAY/DROTHER00:
01:
134.4.4.2Serial1/1
8.8.8.602WAY/DROTHER00:
01:
384.4.4.3Serial1/1
配置OSPF网络类型点到多点
r3（config）#ints1/1
r3（config-if）#ipospfnetworkpoint-to-multipoint
r5（config）#ints1/1
r5（config-if）#ipospfnetworkpoint-to-multipoint
r5（config-if）#noipospfpriority0
r6（config）#ints1/1
r6（config-if）#ipospfnetworkpoint-to-multipoint
r6（config-if）#noipospfpriority0
r3#shipospfnei
NeighborIDPriStateDeadTimeAddressInterface
8.8.8.61FULL/-00:
01:
314.4.4.3Serial1/1
8.8.8.51FULL/-00:
01:
434.4.4.2Serial1/1
r5#shipospfnei
NeighborIDPriStateDeadTimeAddressInterface
8.8.8.30FULL/-00:
01:
404.4.4.1Serial1/1
r6#shipospfnei
NeighborIDPriStateDeadTimeAddressInterface
8.8.8.30FULL/-00:
01:
444.4.4.1Serial1/1
r6#ping8.8.8.5
Typeescapesequencetoabort.
Sending5,100-byteICMPEchosto8.8.8.5,timeoutis2seconds:
!
!
!
!
!
为什么8.8.8.3优先级为0？
配置汇总（使用设备：
r5，r6，r3，r4，switch）
Router（config）#hostnamer4
r4（config）#ints1/0
r4（config-if）#ipadd
r4（config-if）#ipaddress3.3.3.2255.255.255.0
r4（config-if）#noshut
r4（config）#intloopback0
r4（config-if）#ipadd
r4（config-if）#ipaddress8.8.8.4255.255.255.255
r4（config-if）#exit
r4（config）#ospf
r4（config）#routerospf100
r4（config-router）#net
r4（config-router）#network3.3.3.20.0.0.0are
r4（config-router）#network3.3.3.20.0.0.0area0
r4（config-router）#net
r4（config-router）#network8.8.8.40.0.0.0area0
r3（config）#ints1/0
r3（config-if）#ipadd
r3（config-if）#ipaddress3.3.3.1255.255.255.0
r3（config-if）#noshut
r3（config-router）#network3.3.3.10.0.0.0area0
r3#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
3.0.0.0/24issubnetted,1subnets
C3.3.3.0isdirectlyconnected,Serial1/0
4.0.0.0/8isvariablysubnetted,3subnets,2masks
C4.4.4.0/24isdirectlyconnected,Serial1/1
O4.4.4.2/32[110/64]via4.4.4.2,00:
16:
24,Serial1/1
O4.4.4.3/32[110/64]via4.4.4.3,00:
16:
24,Serial1/1
8.0.0.0/32issubnetted,4subnets
C8.8.8.3isdirectlyconnected,Loopback0
O8.8.8.4[110/65]via3.3.3.2,00:
05:
16,Serial1/0
O8.8.8.5[110/65]via4.4.4.2,00:
16:
24,Serial1/1
O8.8.8.6[110/65]via4.4.4.3,00:
16:
24,Serial1/1
r4#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
3.0.0.0/24issubnetted,1subnets
C3.3.3.0isdirectlyconnected,Serial1/0
4.0.0.0/32issubnetted,3subnets
OIA4.4.4.1[110/64]via3.3.3.1,00:
01:
00,Serial1/0
OIA4.4.4.2[110/128]via3.3.3.1,00:
01:
00,Serial1/0
OIA4.4.4.3[110/128]via3.3.3.1,00:
01:
00,Serial1/0
8.0.0.0/32issubnetted,4subnets
O8.8.8.3[110/65]via3.3.3.1,00:
01:
00,Serial1/0
C8.8.8.4isdirectlyconnected,Loopback0
OIA8.8.8.5[110/129]via3.3.3.1,00:
01:
00,Serial1/0
OIA8.8.8.6[110/129]via3.3.3.1,00:
01:
00,Serial1/0
r5#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
3.0.0.0/24issubnetted,1subnets
OIA3.3.3.0[110/128]via4.4.4.1,00:
00:
15,Serial1/1
4.0.0.0/8isvariablysubnetted,3subnets,2masks
C4.4.4.0/24isdirectlyconnected,Serial1/1
O4.4.4.1/32[110/64]via4.4.4.1,00:
11:
13,Serial1/1
O4.4.4.3/32[110/128]via4.4.4.1,00:
11:
13,Serial1/1
8.0.0.0/32issubnetted,4subnets
OIA8.8.8.3[110/65]via4.4.4.1,00:
11:
13,Serial1/1
OIA8.8.8.4[110/129]via4.4.4.1,00:
00:
05,Serial1/1
C8.8.8.5isdirectlyconnected,Loopback0
O8.8.8.6[110/129]via4.4.4.1,00:
11:
13,Serial1/1
在r3上做汇总：
r3（config）#routerospf100
r3（config-router）#area1ra
r3（config-router）#area1range4.4.4.0255.255.255.248
r3（config-router）#area0range3.3.3.0255.255.255.252
r4#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
3.0.0.0/24issubnetted,1subnets
C3.3.3.0isdirectlyconnected,Serial1/0
4.0.0.0/29issubnetted,1subnets
OIA4.4.4.0[110/64]via3.3.3.1,00:
00:
55,Serial1/0
8.0.0.0/32issubnetted,4subnets
O8.8.8.3[110/65]via3.3.3.1,00:
09:
57,Serial1/0
C8.8.8.4isdirectlyconnected,Loopback0
OIA8.8.8.5[110/129]via3.3.3.1,00:
09:
57,Serial1/0
OIA8.8.8.6[110/129]via3.3.3.1,00:
09:
57,Serial1/0
r5#shiproute
Codes:
C-connected,S-static,R-RIP,M-mobile,B-BGP
D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea
N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2
E1-OSPFexternaltype1,E2-OSPFexternaltype2
i-IS-IS,su-IS-ISsummary,L1-IS-ISlevel-1,L2-IS-ISlevel-2
ia-IS-ISinterarea,*-candidatedefault,U-per-userstaticroute
o-ODR,P-periodicdownloadedstaticroute
Gatewayoflastresortisnotset
3.0.0.0/24issubnetted,1subnets
OIA3.3.3.0[110/128]via4.4.4.1,00:
12:
16,Serial1/1
4.0.0.0/8isvariablysubnetted,3subnets,2masks
C4.4.4.0/24isdirectlyconnected,Serial1/1
O4.4.4.1/32[110/64]via4.4.4.1,00:
23:
13,Serial1/1
O4.4.4.3/32[110/128]via4.4.4.1,00:
23:
13,Serial1/1
8.0.0.0/32issubnetted,4subnets
OIA8.8.8.3[110/65]via4.4.4.1,00:
23:
13,Serial1/1
OIA8.8.8.4[110/129]via4.4.4.1,00:
12:
06,Serial1/1
C8.8.8.5isdirectlyconnected,Loopback0
O8.8.8.6[110/129]via4.4.4.1,00:
23:
13,Serial1/1
R5#shipospfdatabase
OSPFRouterwithID（8.8.8.5）（ProcessID100）
RouterLinkStates（Area1）
LinkIDADVRouterAgeSeq#ChecksumLinkcount
8.8.8.38.8.8.315550x800000070x0053A33
8.8.8.58.8.8.516950x800000080x0041FC3
8.8.8.68.8.8.616700x800000020x0083BB3
SummaryNetLinkStates（Area1）
LinkIDADVRouterAgeSeq#Checksum
3.3.3.08.8.8.38930x800000010x00CC0C
8.8.8.38.8.8.315500x800000010x008184
8.8.8.48.8.8.38830x800000010x00F9CA
r3#shipospfdatabase
OSPFRouterwithID（8.8.8.3）（ProcessID100）
RouterLinkStates（Area0）
LinkIDADVRouterAgeSeq#ChecksumLinkcount
8.8.8.38.8.8.39700x800000030x00729D3
8.8.8.48.8.8.49700x800000040x
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